Regional Wastewater System, Upper East Fork Interceptor System, Buffalo Creek Interceptor System, Lower East Fork Interceptor System, and Forney Interceptor System
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Conveyance System SCADA Improvements; Project No. 507-0688-26; Engineering Services Agreement - Preliminary Engineering
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SUBJECT
recommendation
Authorize funding in the amount of $158,448 to Gupta and Associates, Inc. for an engineering services agreement for preliminary design development of the proposed Conveyance System Supervisory Control and Data Acquisition (SCADA) Improvements project.
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PURPOSE
The purpose of this project is to enhance service reliability and operational efficiency across wastewater conveyance systems by developing recommendations for the SCADA network, including redundant communications for centralized monitoring and control of lift stations at the Wilson Creek and South Mesquite Creek Regional Wastewater Treatment Plants.
RECOMMENDATION
The Executive Director and NTMWD staff recommend the Board of Directors authorize the Executive Director to execute an engineering services agreement (ESA) as follows:
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Consultant: |
Gupta and Associates, Inc. |
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Scope: |
Preliminary Engineering |
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Project: |
No. 507-0688-26, Conveyance System SCADA Improvements |
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Amount: |
$158,448 |
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Committee: |
This item was discussed at the May 27, 2026, Wastewater Committee meeting |
DRIVER(S) FOR THIS PROJECT
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Strategic Objective: |
1.1 High Quality Services 1.4 Reliable and Resilient Systems |
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☐ Regulatory Compliance |
☐ Asset Condition |
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☐ Capacity |
☒ Redundancy/Resiliency |
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☐ Relocation or External Requests |
☒ Operational Efficiency |
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☐ Safety |
☐ Administrative |
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☐ Policy |
☐ Other _____________ |
BACKGROUND
An alternate communication solution is recommended to back up the existing radio system for the lift stations located in the southern wastewater conveyance service area. The lift stations in the southern wastewater service area experience a high number of alarms indicating miscommunication with the control room at the South Mesquite Creek Regional Wastewater Treatment Plant . This project will provide recommendations for centralized monitoring of all lift stations at the Wilson Creek Regional Wastewater Treatment Plant, installation of a backup communication network and replacement of aging communication equipment at the following lift stations: Lower East Fork, Buffalo Creek, Forney Lift Station and Forney Mustang Creek.
The alternate communication system will be an extension of the system installed for the Upper East Fork Interceptor System (UEFIS) in 2018 Centralized monitoring of all lift stations in the UEFIS and southern conveyance systems at the Wilson Creek RWWTP is recommended. The Wilson Creek RWWTP provides a manned control room 24 hours a day and 7 days a week, where the conveyance staff is based for operational efficiency and consistency of callouts.
PROJECT PURPOSE
Provide a reliable and resilient overall communication system recommendation and implementation plan for all remote lift stations, including backup communications, for centralized monitoring and control at the Wilson Creek and South Mesquite Creek Regional Wastewater Treatment Plants.
PROJECT COMPONENTS
• Preliminary design report including:
o Recommendations for monitoring and control of all lift stations at the Wilson Creek RWWTP
o Recommendations for monitoring only of Lower East Fork, Buffalo Creek, Forney Lift Station and Forney Mustang Creek lift stations at the South Mesquite Creek RWWTP
• Conduct communication study to support recommendations to improve reliability of communication at remote lift station locations
• Develop project summary sheets for future capital projects
• Class 5 Association for the Advancement of Cost Engineering (AACE) cost estimates for each design option
BASIC SERVICES
• Radio path studies for Upper East Fork Interceptor System (UEFIS) & lift stations in the southern wastewater service area
o Identify sites with low signal strength and provide recommendations for improvement
o Evaluate communication between South Mesquite Regional Wastewater RWWTP and Wilson Creek RWWTP
• Evaluate current backup cellular communication and provide recommendations to expand backup communication to the southern wastewater service area lift stations
• Determine modifications needed for Human Machine Interface (HMI)
• Preliminary design report
SPECIAL SERVICES
• Physical radio communication testing
CONSULTANT SELECTION PROCESS
• A total of three engineering firms, were interviewed and Gupta and Associates Inc. was deemed the most highly qualified firm for this project.
ENGINEERING SERVICES FEE
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Description |
Amount |
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Basic Services |
$148,448 |
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Special Services |
$10,000 |
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Requested Amount |
$158,448 |
FUNDING
Funding in the amount of $158,448 to Gupta and Associates, Inc. is to be made available utilizing $31,690 from the Regional Wastewater System Construction Funds, $31,690 from the Upper East Fork Interceptor System Construction Funds, $31,690 from the Buffalo Creek Wastewater Interceptor System Construction Funds, $31,690 from the Lower East Fork Wastewater Interceptor System Construction Funds and $31,688 from the Mustang Creek Wastewater Interceptor System Construction Funds.